D.C.Kay, . (2005). Teusor Calculus (Schaum Series). New Delhi: Tata Macgraw-Hill.
D.C.Kay, . 2005. Teusor Calculus (Schaum Series). New Delhi: Tata Macgraw-Hill.
D.C.Kay, . Teusor Calculus (Schaum Series). New Delhi: Tata Macgraw-Hill. 2005.
